Ongoing studies at Mount St. Helens have added to scientific knowledge about succession. Which two statements about succession are true? During succession, the biodiversity in an area often increases over time.

The earliest stages of succession usually have the highest biodiversity.

Only one species at a time will colonize an area.

Many species can colonize an area at the same time.

Chance does not play a part in determining when species colonize an area.

there are 35 white marbles

step-by-step explanation:

y- yellow marbles

4y + 5 = 45

subtract 5 from both sides

4y = 40

divide for from both sides

y = 10

plug in 10 to get 40 yellow marbles then subtract by 5 to get 35 marbles

thus there are only 10 yellow marbles

answer: national resource conservation services

national resource conservation services is the us. based approach that provides technical and financial assistance for natural resource management. nrcs society in conservation of resources by involving in activities like farmland protection, flood prevention, watershed protection, urban conservation, conserves economic and environmental conditions. it conducts soil surveys and implements the policy of natural resources management on the society.